25 citations · 62 across the 11 of their papers we have counts for
12 papers
Global and nonlocal magic of quantum many-body scars
Lukas Ebner, Giovanni Cataldi, Kaidi Xu +2
Nonergodic features of chaotic quantum many-body systems are commonly characterized through local observables, fidelity, and entanglement entropy. Here, using global and nonlocal m…
Non-Abelian string melting and thermalization in an open lattice gauge theory
Erick Parra Verde, Giovanni Cataldi, Stefan Kühn +2
Open-system lattice gauge theory (LGT) has so far been developed predominantly in Abelian settings, leaving open how genuinely non-Abelian gauge structure reshapes dissipative real…
Real-Time String Dynamics in D Lattice Quantum Electrodynamics
Helen Zwölfer, Giovanni Cataldi, Umberto Borla +1
Understanding real-time string dynamics in three spatial dimensions is essential for connecting quantum simulations of lattice gauge theories (LGTs) to the physical dimensionality…
Quantum Resources in Disorder-Free Localization Dynamics of Gauge Theories
Devendra Singh Bhakuni, Giovanni Cataldi, Jad C. Halimeh +1
Quantum-state complexity diagnostics provide valuable insight into many-body dynamics, information scrambling, and quantum computation. Here, we investigate the real-time dynamics…
Real-Time String Dynamics in a D Non-Abelian Lattice Gauge Theory: String Breaking, Glueball Formation, Baryon Blockade, and Tension Reduction
Giovanni Cataldi, Simone Orlando, Jad C. Halimeh
Understanding flux string dynamics can provide insight into quark confinement and hadronization. First-principles quantum and numerical simulations have mostly focused on toy-model…
Optimal local basis truncation of lattice quantum many-body systems
Peter Majcen, Giovanni Cataldi, Pietro Silvi +1
We show how to optimally reduce the local Hilbert basis of lattice quantum many-body (QMB) Hamiltonians. The basis truncation exploits the most relevant eigenvalues of the estimate…
Disorder-Free Localization and Fragmentation in a Non-Abelian Lattice Gauge Theory
Giovanni Cataldi, Giuseppe Calajó, Pietro Silvi +2
We investigate how isolated quantum many-body systems dynamically equilibrate under non-Abelian gauge-symmetry constraints. By encoding gauge superselection sectors into static $\m…
Hamiltonian Lattice Gauge Theories: emergent properties from Tensor Network methods
Giovanni Cataldi
This thesis develops advanced Tensor Network (TN) methods to address Hamiltonian Lattice Gauge Theories (LGTs), overcoming limitations in real-time dynamics and finite-density regi…
Tensor Networks for Lattice Gauge Theories beyond one dimension: a Roadmap
Giuseppe Magnifico, Giovanni Cataldi, Marco Rigobello +4
Tensor network methods are a class of numerical tools and algorithms to study many-body quantum systems in and out of equilibrium, based on tailored variational wave functions. The…
Quantum Many-Body Scarring in a Non-Abelian Lattice Gauge Theory
Giuseppe Calajò, Giovanni Cataldi, Marco Rigobello +5
Quantum many-body scarring (QMBS) is an intriguing mechanism of weak ergodicity breaking that has recently spurred significant attention. Particularly prominent in Abelian lattice…
Digital quantum simulation of lattice fermion theories with local encoding
Marco Ballarin, Giovanni Cataldi, Giuseppe Magnifico +5
We numerically analyze the feasibility of a platform-neutral, general strategy to perform quantum simulations of fermionic lattice field theories under open boundary conditions. Th…
Hilbert curve vs Hilbert space: exploiting fractal 2D covering to increase tensor network efficiency
Giovanni Cataldi, Ashkan Abedi, Giuseppe Magnifico +4
We present a novel mapping for studying 2D many-body quantum systems by solving an effective, one-dimensional long-range model in place of the original two-dimensional short-range…